At the first meeting of the amputees’ support group, there were 93…

At the first meeting of the amputees’ support group, there were 93 fewer handshakes than there would have been if everyone had at least one arm and shook hands once with everyone else. The people with less than one arm made up 1/11 of the group. How many of them were there?

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #830